Dubuclet was born in Iberville Parish, Louisiana. He was the son of Antoine Dubuclet, Senior and Rosale (Belly), both were free blacks. His father was part owner of Cedar Grove, a successful sugar plantation.
Upon his father"s death Dubuclet took over his father"s responsibilities and assisted in managing the plantation which held over 70 slaves.
Dubuclet was the first person of African descent to hold the office of Louisiana Treasurer. This marriage lasted till her death in 1852. His successful management of both his and his wife"s properties allowed him to acquire additional properties.
By 1860 he was considered the wealthiest free black slave owner in Louisiana.
The Civil War devastated the sugar industry in Louisiana and impoverished Dubuclet along with his fellow planters. In 1868, Dubuclet was nominated as the Republican candidate for State Treasurer.
Dubuclet took financial charge of a bankrupt state. Dubuclet was reelected both in 1870 and 1874.
Dubuclet was the only office holder allowed to remain in office during the minor coup d"état, known as the Battle of Liberty Place that occurred in September 1874.
Dubuclet did not seek reelection in 1878. Dubuclet died on December 18, 1887 in Iberville Parish. His remains were transported and interred in the family tomb in Saint Louis Cemetery Number.
2 located in New Orleans.
In 1990 Dubuclet was inducted into the Louisiana Black History Hall of Fame.
Dubuclet along with other members of the state administration were successful in reducing the state"s debt.
